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A cumulative frequency of 42 at xxx means what?
A
42 observations have values less than or equal to xxx.
B
The running total includes all observations up to the end of the class.
C
The interquartile range is IQR=Q3−Q1\boxed{\mathrm{IQR}=Q_3-Q_1}IQR=Q3−Q1.
D
The spread of the middle 50% of the data.
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2.2.3 Cumulative frequency diagram Flashcards
21 flashcards on OCR (MEI) A Level Maths 2.2.3 Cumulative frequency diagram: the key formulae, methods and definitions you need to recall for Component 01, Component 02 and Component 03.